Source: China – South China Morning PostThe Omicron variant of the coronavirus started circulating in the northern Chinese port city of Tianjin during the three-day New Year holiday, health authorities said on Wednesday as the city of 14 million launched a second round of mass testing.Officials said contact tracing indicated that children who went to day care facilities during the holiday contracted the virus and spread it at school when they returned on January 4.“The virus was passed to their schools, to their schoolmates and to…Read More